[Nouveau] [Bug 89969] vaDriverInit fails with gallium/nouveau driver

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89969

--- Comment #5 from Julien Isorce <julien.isorce at gmail.com> ---
I am interested but I would need some infos to start :)

Also I do not understand why a functionality is missing in drivers/nouveau
since st/vdpau works (which means nouveau_vp3_fill_picparm_mpeg12_bsp and
nouveau_vp3_fill_picparm_h264_bsp work).

So I was suspecting something wrong in st/va/picture.c
Using the above bt, I noticed that for st/vpdau
http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/state_trackers/vdpau/decode.c#n557
the third param is well defined.
Whereas for st/va
http://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/state_trackers/va/picture.c#n520
the third param is NULL which leads to the crash.

Few minutes ago I tried naively to replace this NULL param with
"&context->desc.base" but then I can see a wrong image in my application when
rendering decoded images.

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